Lead oxide coatings on sol-gel derived lead lanthanum zirconium titanate thin layers for enhanced crystallization into the perovskite structure
- Univ. of Illinois, Urbana, IL (United States)
An improved method is described for the sol-gel preparation of PLZT thin layers in the perovskite structure. The method uses a PbO cover coat. Details are reported for the sol-gel processing route and heat-treatment conditions. Through use of this method it is possible to prepare single-phase perovskite material with improved properties. The deleterious effect of additional phases--which are not present when a PbO cover coat is used--is attributed to Pb loss from the surface during thermal processing. Examples are given for PLZT thin layers integrated on Si with and without a PbO cover coat. The dielectric and ferroelectric properties were always found to be superior for coated structures.
- DOE Contract Number:
- FG02-91ER45439
- OSTI ID:
- 7045387
- Journal Information:
- Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 77:5; ISSN 0002-7820; ISSN JACTAW
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
CHALCOGENIDES
CRYSTAL STRUCTURE
CRYSTALLIZATION
ELECTRICAL PROPERTIES
LANTHANUM COMPOUNDS
LEAD COMPOUNDS
LEAD OXIDES
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PLZT
RARE EARTH COMPOUNDS
SOL-GEL PROCESS
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
USES
ZIRCONATES
ZIRCONIUM COMPOUNDS